```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>千万级用户数据库优化方案</title>
    <link rel="stylesheet" href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css">
    <link rel="stylesheet" href="https://cdn.staticfile.org/tailwindcss/2.2.19/tailwind.min.css">
    <link href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/mermaid@latest/dist/mermaid.min.js"></script>
    <style>
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.6;
        }
        h1, h2, h3, h4 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 600;
            color: #1e293b;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
        }
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .transition-all {
            transition: all 0.3s ease;
        }
        .drop-caps::first-letter {
            font-size: 4rem;
            float: left;
            line-height: 0.8;
            margin-right: 0.5rem;
            color: #4f46e5;
            font-weight: bold;
        }
        .section-divider {
            height: 2px;
            background: linear-gradient(90deg, transparent 0%, rgba(79, 70, 229, 0.5) 50%, transparent 100%);
        }
    </style>
</head>
<body class="antialiased">
    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20 px-4 md:py-32">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0">
                    <h1 class="text-4xl md:text-5xl font-bold leading-tight mb-6">
                        千万级用户数据库<br>性能优化之道
                    </h1>
                    <p class="text-xl text-indigo-100 mb-8 leading-relaxed">
                        针对1%活跃用户的极致性能优化方案，让您的系统在高负载下依然保持闪电般的响应速度。
                    </p>
                    <div class="flex space-x-4">
                        <a href="#solutions" class="bg-white text-indigo-600 px-6 py-3 rounded-lg font-medium hover:bg-indigo-50 transition-all">
                            <i class="fas fa-rocket mr-2"></i>查看方案
                        </a>
                        <a href="#visualization" class="bg-indigo-800 text-white px-6 py-3 rounded-lg font-medium hover:bg-indigo-700 transition-all">
                            <i class="fas fa-chart-network mr-2"></i>架构可视化
                        </a>
                    </div>
                </div>
                <div class="md:w-1/2 md:pl-12">
                    <div class="bg-white bg-opacity